Touch panel, display device, and input device having shielding for touch sensing electrodes and/or pressure sensing electrodes

Abstract

A touch panel including a sense electrode having a rectangular shape extending in a first direction and including a first sense electrode and a second sense electrode, and a drive electrode having a rectangular shape extending in a second direction intersecting with the first direction on the sense electrode and including a first drive electrode having a shielding property against electric field components. The first drive electrode is positioned covering at least a part of the first sense electrode in a planar view in which the sense electrode is viewed from the drive electrode.

What is claimed is: 
     
       1. A touch panel comprising:
 a sense electrode including a first sense electrode and a second sense electrode, the sense electrode having a rectangular outer shape extending in a first direction; and 
 a drive electrode including a first drive electrode having a shielding property against electric field components, the drive electrode having a rectangular outer shape extending in a second direction intersecting with the first direction on the sense electrode, 
 the first drive electrode being a solid electrode and positioned covering at least a part of the first sense electrode in a planar view in which the sense electrode is viewed from the drive electrode and being capacitively coupled with the first sense electrode and the second sense electrode when one kind of drive signal is applied from outside, wherein 
 the drive electrode further including a second drive electrode having a rectangular outer shape and being disposed in a position opposite to the first sense electrode and the second sense electrode, 
 the second drive electrode being a metal mesh electrode formed by wiring thin metal wires, and 
 the first drive electrode being layered on the second drive electrode. 
 
     
     
       2. The touch panel according to  claim 1 ,
 wherein 
 the first drive electrode is an electrode having a rectangular flat plate outer shape and including a transparent conductive film, and 
 the second drive electrode is an electrode including a transparent conductive film in which slits are formed. 
 
     
     
       3. The touch panel according to  claim 1 , further comprising a shield electrode provided along an outer circumference of the first sense electrode and having an electrical potential independent of the first sense electrode. 
     
     
       4. The touch panel according to  claim 1 ,
 wherein the first drive electrode is disposed covering an entirety of the first sense electrode in the planar view. 
 
     
     
       5. A display device comprising:
 the touch panel according to  claim 1 ; and 
 a display portion having a display surface configured to display images, the touch panel being disposed on the display surface. 
 
     
     
       6. An input device comprising:
 the touch panel according to  claim 1 ; and 
 a controller, 
 the controller being configured to:
 obtain an intensity of a signal generated from a detection target object and received with the sense electrode or the drive electrode; and 
 determine that, when the intensity of the signal falls within a certain range, a tilt of the detection target object has not been changed with respect to an input surface of the touch panel. 
 
 
     
     
       7. A touch panel comprising:
 a sense electrode including a first sense electrode and a second sense electrode, the sense electrode having a rectangular outer shape extending in a first direction; and 
 a drive electrode including a first drive electrode having a shielding property against electric field components, the drive electrode having a rectangular outer shape extending in a second direction intersecting with the first direction on the sense electrode, 
 the first drive electrode being positioned covering at least a part of the first sense electrode in a planar view in which the sense electrode is viewed from the drive electrode, 
 the first sense electrode including: 
 a pressing force detection electrode portion having a comb outer shape in the planar view; and 
 a shield portion having an electrical potential independent of the pressing force detection electrode portion and being disposed mated with the pressing force detection electrode portion in the planar view, and 
 the first drive electrode being positioned to cover an entirety of the pressing force detection electrode portion in the planar view. 
 
     
     
       8. A touch panel comprising:
 a sense electrode including a first sense electrode and a second sense electrode, the sense electrode having a rectangular outer shape extending in a first direction; and 
 a drive electrode including a first drive electrode having a shielding property against electric field components, the drive electrode having a rectangular outer shape extending in a second direction intersecting with the first direction on the sense electrode, 
 the first drive electrode being a solid electrode and positioned to cover at least a part of the first sense electrode in a planar view in which the sense electrode is viewed from the drive electrode, 
 the drive electrode further including a second drive electrode having a rectangular outer shape and being disposed in a position opposite to the first sense electrode and the second sense electrode, 
 the second drive electrode being a metal mesh electrode formed by wiring thin metal wires, and 
 the first drive electrode being layered on the second drive electrode.